1. The provisions of this Article and the detailed procedures for itsimplementation shall apply to any and all chemical weapons productionfacilities owned or possessed by a State Party, or that are located in anyplace under its jurisdiction or control.

2. Detailed procedures for the implementation of this Article are set forth inthe Verification Annex.

3. All chemical weapons production facilities specified in paragraph 1 shallbe subject to systematic verification through on-site inspection andmonitoring with on-site instruments in accordance with Part V of theVerification Annex.

5. No State Party shall construct any new chemical weapons productionfacilities or modify any existing facilities for the purpose of chemicalweapons production or for any other activity prohibited under this Convention.

6. Each State Party shall, immediately after the declaration under ArticleIII, paragraph 1 (c), has been submitted, provide access to chemical weaponsproduction facilities specified in paragraph 1, for the purpose of systematicverification of the declaration through on-site inspection.

7. Each State Party shall:

(a) Close, not later than 90 days after this Convention enters into forcefor it, all chemical weapons production facilities specified in paragraph 1,in accordance with Part V of the Verification Annex, and give notice thereof;and

(b) Provide access to chemical weapons production facilities specified inparagraph 1, subsequent to closure, for the purpose of systematic verificationthrough on-site inspection and monitoring with on-site instruments in order toensure that the facility remains closed and is subsequently destroyed.

8. Each State Party shall destroy all chemical weapons production facilitiesspecified in paragraph 1 and related facilities and equipment, pursuant to theVerification Annex and in accordance with an agreed rate and sequence ofdestruction (hereinafter referred to as "order of destruction"). Suchdestruction shall begin not later than one year after this Convention entersinto force for it, and shall finish not later than 10 years after entry intoforce of this Convention. A State Party is not precluded from destroying suchfacilities at a faster rate.

9. Each State Party shall:

(a) Submit detailed plans for destruction of chemical weapons productionfacilities specified in paragraph 1, not later than 180 days before thedestruction of each facility begins;

(b) Submit declarations annually regarding the implementation of its plansfor the destruction of all chemical weapons production facilities specified inparagraph 1, not later than 90 days after the end of each annual destructionperiod; and

(c) Certify, not later than 30 days after the destruction process has beencompleted, that all chemical weapons production facilities specified inparagraph 1 have been destroyed.

10. If a State ratifies or accedes to this Convention after the 10-year periodfor destruction set forth in paragraph 8, it shall destroy chemical weaponsproduction facilities specified in paragraph 1 as soon as possible. The orderof destruction and procedures for stringent verification for such a StateParty shall be determined by the Executive Council.

11. Each State Party, during the destruction of chemical weapons productionfacilities, shall assign the highest priority to ensuring the safety of peopleand to protecting the environment. Each State Party shall destroy chemicalweapons production facilities in accordance with its national standards forsafety and emissions.

12. Chemical weapons production facilities specified in paragraph 1 may betemporarily converted for destruction of chemical weapons in accordance withPart V, paragraphs 18 to 25, of the Verification Annex. Such a convertedfacility must be destroyed as soon as it is no longer in use for destructionof chemical weapons but, in any case, not later than 10 years after entry intoforce of this Convention.

13. A State Party may request, in exceptional cases of compelling need,permission to use a chemical weapons production facility specified inparagraph 1 for purposes not prohibited under this Convention. Upon therecommendation of the Executive Council, the Conference of the States Partiesshall decide whether or not to approve the request and shall establish theconditions upon which approval is contingent in accordance with Part V,Section D, of the Verification Annex.

14. The chemical weapons production facility shall be converted in such amanner that the converted facility is not more capable of being reconvertedinto a chemical weapons production facility than any other facility used forindustrial, agricultural, research, medical, pharmaceutical or other peacefulpurposes not involving chemicals listed in Schedule 1.

15. All converted facilities shall be subject to systematic verificationthrough on-site inspection and monitoring with on-site instruments inaccordance with Part V, Section D, of the Verification Annex.

16. In carrying out verification activities pursuant to this Article and PartV of the Verification Annex, the Organization shall consider measures to avoidunnecessary duplication of bilateral or multilateral agreements onverification of chemical weapons production facilities and their destructionamong States Parties.

To this end, the Executive Council shall decide to limit the verification tomeasures complementary to those undertaken pursuant to such a bilateral ormultilateral agreement, if it considers that:

(a) Verification provisions of such an agreement are consistent with theverification provisions of this Article and Part V of the Verification Annex;

(b) Implementation of the agreement provides for sufficient assurance ofcompliance with the relevant provisions of this Convention; and

(c) Parties to the bilateral or multilateral agreement keep the Organizationfully informed about their verification activities.

17. If the Executive Council takes a decision pursuant to paragraph 16, theOrganization shall have the right to monitor the implementation of thebilateral or multilateral agreement.

18. Nothing in paragraphs 16 and 17 shall affect the obligation of a StateParty to make declarations pursuant to Article III, this Article and Part V ofthe Verification Annex.

19. Each State Party shall meet the costs of destruction of chemical weaponsproduction facilities it is obliged to destroy. It shall also meet the costsof verification under this Article unless the Executive Council decidesotherwise. If the Executive Council decides to limit verification measures ofthe Organization pursuant to paragraph 16, the costs of complementaryverification and monitoring by the Organization shall be paid in accordancewith the United Nations scale of assessment, as specified in Article VIII,paragraph 7.